SEK class Ια

SEK (Sidirodromoi Ellinikou Kratous, Hellenic State Railways) Class Ια (or Class Ia; Iota-alpha) is a class of twenty 2-8-2 steam locomotives purchased from the American Locomotive Company (Alco) in 1915.

They were given the class letters "Ια" and initially numbered 401 to 420, but were later renumbered 701 to 720.